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Charcoal Soap Recipe – Peppermint Layer and Swirl Soap

Posted by Kelly Handmade Soap, Homemade Soap Recipes 53 comments
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Please Share

I had a lot of fun making this soap.  I’ve been wanting to make a charcoal soap recipe with a peppermint scent and white specks or swirls for a while now. I like the white on black or black with white highlights look.  It just seems that peppermint fits.  Of course, you can add whatever scent you prefer.

It make a great present: a pretty Valentine’s Day gift for your mom, daughter, or friend, Mother’s Day gift, Wedding or Baby Shower favors when cut into cute 2oz bars. You have so many fun options with this beautiful charcoal bar.

Peppermint Charcoal Soap Recipe by Simple Life Mom

Health Benefits

When I make a soap recipe, I make it first and foremost healthy. What’s the point in making something to go on your skin if it has bad ingredients in it? There are too many healthy options to think you need to choose anything toxic.

What I love about activated charcoal is that it helps make a soap that is amazing for your skin. I’ve had testimony after testimony about how my tea tree charcoal soap has gotten rid of acne, eczema, and other skin related issues. The tea tree helps kill bacteria, but it’s the charcoal that gives the skin a deep cleanse.

Peppermint is bright and uplifting. It is very cooling in the summertime. Another reason I thought the light and dark with a bright scent would go well together.

Layers and Swirls

It adds an extra bit of beauty to add a thin line of color on the bottom.  This is easy to do by just pouring a little bit of the batch into the bottom of your mold before you add the charcoal.  You can choose how thick or thin you’d like to make that layer.

Remember, with layers you need your batter to be at thick trace so that one color doesn’t sink into the other. But you usually want moderately thin trace to make pretty swirls. So how does that work? Well, the lovely thing about this recipe is that it shows how forgiving soap making can be. I have pictures to demonstrate.

Separating Colors

To make this charcoal soap recipe, you’ll need to weigh and melt the oils and weigh and mix your lye water, just as you would any cold process soap recipe. Add lye water to oils when temperatures are around 100 degrees. Blend until medium light trace and blend in essential oils. Pour a small layer on the bottom of your prepared mold.

ALSO, remove some white soap for the swirls.

Peppermint Charcoal Soap Recipe

Add charcoal to the large main batch, combine, and you’re ready to go to work.

Layering Colors

You’ll need to move quickly and carefully. Slowly scoop or pour the charcoal soap over a spatula onto the white soap layer. Smooth the charcoal layer as best you can over the top.

Peppermint Charcoal Soap Recipe

My soap was hardening very quickly, so by the time I took a few pictures and went to drizzle the white soap over the top for layers, I had a thick pudding like consistency to work with. Not to be discouraged, I went ahead and blobbed it onto the top of my soap in horizontal “lines”.  This is what I mean about soap making often being very forgiving. Swirls are the most easily beautiful creation to make in soap, because they can start off being messy blobs and end up in beautiful designs. When soap hardens too quickly during the pouring stage, understanding soap making troubleshooting techniques can help you adapt and still achieve beautiful results.

Peppermint Charcoal Soap Recipe from Simple Life Mom

I literally just took a dowel rod and made tiny swirls until I was happy with how it looked. Be careful not to put the dowel rod down to the bottom. You don’t want to ruin that bottom flat layer.

Peppermint Charcoal Soap Recipe

Peppermint Charcoal Soap Recipe

This recipe is for 12 four ounce bars or 48oz. 5% Superfat content.

Ingredients:

  • 13 ounces Tallow
  • 11 ounces Olive Oil
  • 8 ounces Coconut Oil
  • 11.2 ounces Water
  • 4.6 ounces Lye
  • 4 – 1/2 teaspoons Activated Charcoal Powder
  • 1 ounce Peppermint Essential Oil

Directions:

  1. Combine oils and fats in a large pot. Melt and cool to 100 degrees Fahrenheit.
  2. Wearing appropriate safety equipment, go outside and add lye to water and stir until dissolved. Let cool until it is around 100 degrees Fahrenheit.
  3. When both oils and lye water are at desired temperatures, pour lye water into oils and use a stick blender to blend on and off until light-medium trace.
  4. Add essential oil and blend.
  5. Pour a thin layer of cream colored soap into a lined mold.
  6. Remove 1 cup of cream colored soap and set aside.
  7. Slowly pour black soap into the mold. Use a spatula to catch the flow so that it gently lays into the mold. Smooth with a spatula.
  8. Take the cup of cream soap that you removed and pour it in horizontal stripes back and forth over the mold. Then take a dowel rod and carefully, without touching the bottom and ruining your bottom layer, swirl the dowel rod in small circles to drag the white soap into pretty swirls on the top of your batch.
  9. Cover and insulate for 24 hours.
  10. Remove, cut, and cure for 4-6 weeks.
Peppermint Charcoal Soap Recipe by Simple Life Mom

Please Share
53 comments

About Kelly

Kelly is the author of number one best seller The Natural Soap Making Book for Beginners and Easy Soap Making. She's also written multiple ebooks on herbal remedies and natural bath and body DIYs.Her journey toward better health has inspired her to make things in and around the home from scratch, start a homestead, and become more resourceful when it comes to health and home.She shares her recipes and DIYs here on Simple Life Mom and has a shop where she sells products for those who would rather buy than make (SimpleLifeMom.com/shop).

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53 comments

Leave your reply.
  • Heather Duane
    · Reply

    February 2, 2019 at 1:20 PM

    Hi! My husband gave me your book The Natural Soapmaking Book for Beginners after I just started making soap. I had made three successful batches of soap from recipes I found online. I decided to try your recipe Gentle Baby Soap and the soap won’t harden like other soap I have made. So I thought I would try the recipe again and although this batch of soap looks better and I was extra careful with my measurements and temperatures the soap still seems really soft compared to other soaps I have made. I’ve made other soaps since and they are all hardening just fine. Perhaps the bars are going to be softer because of all the Olive oil used? Any words of wisdom would be appreciated. Thanks! Heather.
    PS: I have used some of the “soft” soap to make liquid hand soap which is quite delightful.

    • Kelly
      · Reply

      Author
      February 2, 2019 at 7:59 PM

      The baby soap recipe is a gentle soap recipe with a higher superfat content (leftover oils). It will take longer to harden than some other bars. It should still be moderately hard within 3-4 weeks.

  • Sarah Tevis
    · Reply

    February 6, 2019 at 12:13 PM

    This soap is absolutely beautiful! I love making soap, so I will definitely save this recipe for later. Thanks for sharing! #homesteadbloghop

  • Tru
    · Reply

    February 9, 2019 at 9:25 AM

    Oh my goodness I have always wanted to make some pretty yet functional and good for you soap and thought it would just be to difficult. Yet I feel like I could totally do this! Added to the list 🙂 stopping by from the homesteaders blog hop

    • Kelly
      · Reply

      Author
      February 12, 2019 at 8:01 AM

      You can TOTALLY do this! Let me know if you have questions.

  • Katie Earls
    · Reply

    April 14, 2019 at 12:01 PM

    Hi there! I’ve chosen this to be my first soap to make! It’s so pretty! I find even moisturizing soaps still leave my skin feeling a bit dry. Is there something I can change in this recipe to make it super moisturizing? If I could make this but have it like a lotion bar soap hybrid I’d be so happy! Please let me know your thoughts. I’m going’s to start ordering ingredients soon 🙂

    • Kelly
      · Reply

      Author
      April 16, 2019 at 6:18 AM

      Hi Katie. Natural soaps do not have the glycerin removed like commercial soaps so they are a lot more moisturizing from the start. You can add a little bit of honey to this recipe to make it even more moisturizing though. The honey will help lock in moisture in your skin.

  • Rita
    · Reply

    April 26, 2019 at 11:20 AM

    Hello, can I substitute tallow in this recipe for something else? Thanks

    • Kelly
      · Reply

      Author
      April 27, 2019 at 2:12 PM

      You can substitute it with lard. Anything else will mean changing everything.

  • Terry Durnavich
    · Reply

    June 24, 2019 at 8:32 AM

    Hi Kelly – thank you so much for your beginners soap making book. There isn’t a single recipe I had problems with even when I accidently just poured in the lye water as soon as I brought it back in – just was not thinking – which one must do when soap making. But it came out perfectly. Am so pleased to find you concerned about contents. I am having fun, but need to avoid the more expensive (and unavailable) oils. I am experimenting with colour and find it difficult to get the colours I want – deep reds, blues, etc. Am waiting for a batch of Indigo to cure (infused with the oil). What I want to know is how to mix colours in one batch when, for instance, one colour has to be in fused and another can be added at trace. Or do I have to make 2 separate batches of soap. Again, thank you thank you for your wonder work and contributions towards our health and environment. Terry D.

    • Kelly
      · Reply

      Author
      June 24, 2019 at 1:12 PM

      It really depends on the look that you want to achieve. When using infused oils the easiest thing to do is make separate smaller batches. You can also make one batch and hold out that particular infused oil until you’ve divided the batch.

  • Terry
    · Reply

    June 25, 2019 at 6:50 AM

    Do you mean I can wait to add the colour oil infusion after bringing main batch to trace? Confused. I want to add a colour that say should be oil infused (indigo) and a colour that instructions say to add to lye water (calendula powder) but don’t want to mix them together! Make sense? Thanks again. Terry

    • Kelly
      · Reply

      Author
      July 1, 2019 at 7:57 PM

      Yes, If you added a little oil at trace you can make that work, but wanting to do that and add a color best added to lye water – I would make two smaller batches.

  • Terry
    · Reply

    July 4, 2019 at 8:36 AM

    Thank you again. Can I halve the recipes in your book? The “Beginner” book?

    • Kelly
      · Reply

      Author
      July 8, 2019 at 7:40 AM

      Yes, you can find it on Amazon http://bit.ly/NaturalSoapMaking or you can find one in my etsy shop: http://simplelifemom.etsy.com

  • Guerline Pierre-Paul
    · Reply

    July 10, 2019 at 3:59 PM

    Can you give activated charcoal recipe.

  • Jessie Lynn
    · Reply

    August 5, 2019 at 10:23 AM

    Hi love this recipe. Do you know if I can substitute the water for Goats Milk?

    • Kelly
      · Reply

      Author
      August 5, 2019 at 5:46 PM

      Yes you can. No problem.

  • Sharon
    · Reply

    September 21, 2019 at 11:38 AM

    Hi, I don’t quite have enough tallow, can I add more coconut oil, about 9 oz. to add up to the tallow amount?

    • Kelly
      · Reply

      Author
      September 23, 2019 at 7:58 AM

      No, it will completely change the soap quality and the amount of lye needed.
      Lard is a good substitute for tallow.

  • CS
    · Reply

    September 22, 2019 at 10:03 PM

    Was wondering if you had a good mechanic soap recipe using pumice and some super scrubbing de-greasing action? Thank you!

    • Kelly
      · Reply

      Author
      September 23, 2019 at 7:56 AM

      I don’t have one specifically made for that but that’s a great idea! I’ll work on putting it together.

      • CS
        · Reply

        September 23, 2019 at 5:53 PM

        That would be super! Thank you! My husband is anxious for me to make him some soap that gets the black grease off. I was thinking I could just add it to your basic soap recipe but I’m new to soap making and didn’t want to mess it all up. 🙂

  • Suzy Hurst
    · Reply

    February 29, 2020 at 10:16 AM

    I have just stumbled across your beautiful charcoal peppermint soap…. love it!
    How many batches would i require for a 1.2 kg soap loaf?

    Thanks

    • Kelly
      · Reply

      Author
      March 1, 2020 at 6:15 PM

      It should be able to hold a 2-3 pound batch of soap.

      • Rasheeda
        · Reply

        March 8, 2024 at 4:46 PM

        Hi there Kelly

        Can I substitute the tallow In this recipe for shea butter.

        Will it change the recipe in any way.

        Thank you

        Warm Regards
        Rasheeda

        • Kelly
          · Reply

          Author
          March 8, 2024 at 5:13 PM

          It will change the recipe. You can’t substitute tallow for Shea butter. You can change it for lard. Otherwise, find a vegan recipe on my website and use the charcoal and essential oils of this recipe.

  • Glenda Krauss
    · Reply

    March 3, 2020 at 10:22 AM

    I used your recipe for my very first batch of soap. Finally got to use it being 4 weeks of curing. After using it my skin felt very dry. I made sure when making it that I measured it exactly.
    What did I do wrong to cause this dry feeling while I’m using it?

    • Kelly
      · Reply

      Author
      March 5, 2020 at 10:17 PM

      I’m not sure. This is one of my tried and true recipes for sure. It has 5% superfat and tallow, all giving it a moisturizing effect. The only other thing I can think of is that you are sensitive to one of the ingredients like coconut, peppermint, or the tallow.

  • Ainav
    · Reply

    March 18, 2020 at 4:09 AM

    Hey! what a beautiful recipe.
    I have two questions-
    1. Can I replace the tallow with Shea butter?
    2. when and how do I add the Charcoal Powder? Do I just sprinkle it on?
    Thank you !

    • Kelly
      · Reply

      Author
      March 22, 2020 at 3:01 PM

      No, you cannot replace tallow with shea butter. But you can replace it with lard.
      If you want to make a layer, remove half of the soap and add the chracoal in. Just sprinkle it in to the half and whisk until there are no lumps.

  • Oluchi Jennie Bamidele
    · Reply

    June 1, 2020 at 3:00 PM

    Dear Kelly,

    Your recipe is wao! unfortunately i cannot get to buy lard or tallow here. Can i use Palm kernel oil?

    I really want to try my hand on this recipe.

    Thank you.

    • Kelly
      · Reply

      Author
      June 3, 2020 at 10:12 AM

      Yes you can. Just run it through a lye calculator to make any changes needed.

  • kisha
    · Reply

    August 21, 2020 at 8:08 AM

    Hello Kelly,

    I wanted to know is there another oil that can take the place of the Tallow. I’m a beginner soaper. I’m still learning a lot of things. I also would like to know if you give advice on how to use the soap cal I’ma little confused about it and how to make my own recipes, and how to measure your mold. I’m sorry for so many questions?
    Thanks

    • Kelly
      · Reply

      Author
      August 25, 2020 at 11:05 AM

      I should say how many pounds of soap is in the recipe. If I’ve forgotten that, just let me know and I’ll edit it.
      You can interchange tallow with lard at any time. I’ve also used babassu oil.
      Here’s a great article on how to exchange oils and use the lye calculator: https://simplelifemom.com/2020/06/07/how-to-substitute-oils-in-soap-recipes/

  • christine bastide
    · Reply

    August 26, 2020 at 4:16 AM

    Bonjour, je regarde à l’instant les recettes mais onces c’est quoi en français svp ??

    • Kelly
      · Reply

      Author
      August 29, 2020 at 8:49 PM

      You’ll need to convert ounces into grams. You can search for that on the internet pretty easily.

  • Robert Landers-Taylor
    · Reply

    September 14, 2020 at 6:24 AM

    Hi Kelly,
    I recently purchased your book “The Natural Soap Making Book for Beginners”
    I make your tried and true soap recipe. So far so good. Waiting for it to cure.
    My question is: Can I use this recipe and add color and essential oils? I saw I can do that
    to the Basic and Lovely soap. But, wanted to try with Tried and True. Thank you.

    • Kelly
      · Reply

      Author
      September 15, 2020 at 1:12 PM

      Yes, you can definitely use some additives and play around with the recipes. Have fun!

  • Ginger
    · Reply

    January 23, 2021 at 4:23 PM

    Can you use tea tree instead of peppermint?

    • Kelly
      · Reply

      Author
      January 24, 2021 at 6:18 PM

      Yes, feel free to substitute essential oils.

  • Denise Brislin
    · Reply

    May 2, 2021 at 2:47 PM

    HI, I’m new to soap making and love your simple yet thorough explainations. I was wondering if LARD is the same as CRISCO. If it is, would the amounts be the same. I often wonder about using substitutes and the amounts you need. Is it generally the same?
    Thanks, Denise

    • Kelly
      · Reply

      Author
      May 9, 2021 at 1:05 PM

      You can substitute lard with crisco. It usually has a few preservatives in it, so it depends on what you’re ok with. But for recipe’s sake, it works 1:1.

  • Lisa
    · Reply

    September 27, 2021 at 10:50 PM

    Hi Kelly, can you provide the percentage for each ingredient? I tried using SoapCal and I can only get the same measurement with 0% of super fat. I know that is not correct because you have said this recipe has 5% super fat. I wanted it in SoapCal so I can modify the batch size to fit my mold. I’m excite to try this recipe. It will be my first time using tallow in soap.
    Thank you!
    Lisa

    • Kelly
      · Reply

      Author
      September 27, 2021 at 11:04 PM

      Sure. I just ran it again. I think I did make an error when I rounded. It wasn’t enough to make a huge difference. It was 3% instead of 5, but I did change it and also lowered the water slightly to what I like to use these days. Thanks for commenting! Here’s the percentages.
      Tallow-40.63%
      Olive-34.38%
      Coconut-25%
      If you have questions, let me know.

      • Lisa
        · Reply

        September 28, 2021 at 9:50 PM

        Thank you Kelly for the percentage. One more question, what is the number for the Water as % of Oil?
        Thanks again.

        • Amanda
          · Reply

          March 30, 2026 at 9:26 PM

          Made your soap for my family for Christmas, but I used the lye calculator and substituted 2 oz of olive oil for castor. It suds so nicely and is so beautiful and not drying. My whole family loves it and is asking for more. Thanks for sharing this recipe!

          • Kelly

            Author
            March 31, 2026 at 11:52 AM

            That sounds wonderful. Castor oil adds bubbles and would be a good addition to the recipe.

  • Алексей, СПб
    · Reply

    November 5, 2021 at 1:46 AM

    Hello. Can I replace the fat in the recipe with palm oil?

    • Kelly
      · Reply

      Author
      November 8, 2021 at 6:39 PM

      No, the bar will be way too cleansing and harsh on the skin. I have an article with palm oil recipes on my website. Just use the search bar for it.

  • Алексей, СПб
    · Reply

    November 5, 2021 at 1:58 AM

    And another question: do you need 4 1/2 teaspoons of activated charcoal? Did I understand correctly?

    • Kelly
      · Reply

      Author
      November 8, 2021 at 6:35 PM

      Correct. This makes 3lbs of soap.

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